Finding the Fourth Proportional to 77,586.84, 107,036.10 and 48,889.08
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Solution
The fourth proportional to 77,586.84, 107,036.10 and 48,889.08 is: 67,445.67
Step by Step Solution
- Step 1: Write the proportion equation
77,586.84 : 107,036.10 = 48,889.08 : x - Step 2: Convert to fraction form
77,586.84/107,036.10 = 48,889.08/x - Step 3: Cross multiply
77,586.84x = 107,036.10 × 48,889.08 - Step 4: Simplify right side
77,586.84x = 5,232,896,455.79 - Step 5: Solve for x
x = 5,232,896,455.79/77,586.84 - Step 6: Final answer
x = 67,445.67
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.